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US 5,677,405 AGranted
Homopolymers and copolymers of cationically polymerizable monomers and method of their preparation
AssigneeThe B.F. Goodrich Company
InventorsBrian Leslie Goodall, Lester Howard McIntosh, III, Dennis Allen Barnes
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Abstract
The invention discloses methods of preparing copolymers from norbornene-type monomers and cationically polymerizable monomers or polymers from catalytically polymerizable monomers by employing Group VIII transition metal ion source in a solvent for said monomers at a temperature in the range from -100.degree. C. to 120.degree. C. Also disclosed are copolymers from norbornene-type monomers and catalytically polymerizable monomers.
Claims15
A copolymer containing repeating units derived from
- a) 0.1 to 99.9 weight percent of at least one norbornene-type monomer which undergoes substantially exclusively addition type polymerization, and
- b) 0.1 to 99.9 weight percent of at least one cationically polymerizable monomer excluding 3-methyl-1-butene and 4-methyl-1-pentene said monomer containing substantially exclusively addition-type repeat units derived from the norbornene-type monomers.
A copolymer containing repeating units derived from
- a) 0.1 to 99.9 weight percent of at least one norbornene-type monomer, and
- b) 0.1 to 99.9 weight percent of a comonomer selected from the group consisting of .alpha.-methylstyrene, para-methoxystyrene and para-N,N-dimethylaminostyrene.
Dependencies are inferred from the claim text.